Biaxially oriented poly(ethylene terephthalate)bottle

ABSTRACT

A HOLLOW, BIAXIALLY ORIENTED, THERMOPLASTIC ARTICLE, PARTICULARLY A BOTTLE, PREPARED FROM POLYETHYLENE TEREPHTHLATE WHEREIN SAID ARTICLE HAS AN INHERENT VISCOSITY OF AT LEAST 0.55, A DENSITY OF ABOUT 1.331 TO 1.402 AND A RATIO OF ARTICLE WEIGHT IN GRAMS TO VOLUME IN CUBIC CENTIMERS OF ABOUT 0.2 TO 0.005:1. SUCH ARTICLES HAVE EXCELLENT STRENGTH PROPERTIES, ARE IMPACT RESISTANT, AND ARE CAPABLE OF HOLDING LIQUIDS UNDER PRESSURES AS HIGH AS ABOUT 100 P.S.I.G. AT A TEMPERATURE OF ABOUT 50*C. WITHOUT SIGNIFICANT DEFORMATION MAKING SUCH ARTICLES USEFUL IN BOTTLING LIQUIDS UNDER PRESSURE SUCH AS BEER, CARBONATED BEVERAGES, OR AEROSOLS.



